Base | Representation |
---|---|
bin | 10010011000000… |
… | …110100000100001 |
3 | 210111010200001212 |
4 | 102120012200201 |
5 | 1112411324001 |
6 | 50332035505 |
7 | 10432401101 |
oct | 2230064041 |
9 | 714120055 |
10 | 308308001 |
11 | 149039401 |
12 | 87302b95 |
13 | 4bb49491 |
14 | 2cd37201 |
15 | 1c1007bb |
hex | 12606821 |
308308001 has 4 divisors (see below), whose sum is σ = 311486532. Its totient is φ = 305129472.
The previous prime is 308307997. The next prime is 308308027. The reversal of 308308001 is 100803803.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100803803 = 89 ⋅1132627.
It can be written as a sum of positive squares in 2 ways, for example, as 129390625 + 178917376 = 11375^2 + 13376^2 .
It is a cyclic number.
It is not a de Polignac number, because 308308001 - 22 = 308307997 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (308308501) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589120 + ... + 1589313.
It is an arithmetic number, because the mean of its divisors is an integer number (77871633).
Almost surely, 2308308001 is an apocalyptic number.
It is an amenable number.
308308001 is a deficient number, since it is larger than the sum of its proper divisors (3178531).
308308001 is an equidigital number, since it uses as much as digits as its factorization.
308308001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3178530.
The product of its (nonzero) digits is 576, while the sum is 23.
The square root of 308308001 is about 17558.7015750026. The cubic root of 308308001 is about 675.5563778518.
The spelling of 308308001 in words is "three hundred eight million, three hundred eight thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •